diff options
| author | Li Nan <linan122@huawei.com> | 2026-01-05 19:02:54 +0800 |
|---|---|---|
| committer | Yu Kuai <yukuai@fnnas.com> | 2026-01-26 13:16:17 +0800 |
| commit | cc0dab317acb871e11cd83225c90888397043fe8 (patch) | |
| tree | f905d0043a0daf7cafab512a26ce4d89acea481b /drivers | |
| parent | fd4d44c14ff6a0e815eefd5d87bbba2b2668b18f (diff) | |
md: update curr_resync_completed even when MD_RECOVERY_INTR is set
An error sync IO may be done and sub 'recovery_active' while its
error handling work is pending. This work sets 'recovery_disabled'
and MD_RECOVERY_INTR, then later removes the bad disk without Faulty
flag. If 'curr_resync_completed' is updated before the disk is removed,
it could lead to reading from sync-failed regions.
With the previous patch, error IO will set badblocks or mark rdev as
Faulty, sync-failed regions are no longer readable. After waiting for
'recovery_active' to reach 0 (in the previous line), all sync IO has
*completed*, regardless of whether MD_RECOVERY_INTR is set. Thus, the
MD_RECOVERY_INTR check can be removed.
Link: https://lore.kernel.org/linux-raid/20260105110300.1442509-7-linan666@huaweicloud.com
Signed-off-by: Li Nan <linan122@huawei.com>
Reviewed-by: Yu Kuai <yukuai@fnnas.com>
Signed-off-by: Yu Kuai <yukuai@fnnas.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/md.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index f1debba1b026..96f7eadbf959 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -9740,8 +9740,8 @@ update: wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active)); if (!test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) && - !test_bit(MD_RECOVERY_INTR, &mddev->recovery) && mddev->curr_resync >= MD_RESYNC_ACTIVE) { + /* All sync IO completes after recovery_active becomes 0 */ mddev->curr_resync_completed = mddev->curr_resync; sysfs_notify_dirent_safe(mddev->sysfs_completed); } |